Comparison

VideoDuck vs PDF Diet Mobile

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

VideoDuck

This app helps you shrink video file sizes to free up storage space on your device. It offers fast, offline compression without subscriptions or internet connection, allowing for quicker sharing. You can choose custom quality levels and compress multiple videos at once.

Highlights
  • Compress videos instantly
  • Free up storage space
  • Offline operation
  • Faster sharing
  • Batch compression
  • Custom quality levels
Features
Read full description

VideoDuck – Video Compressor & Space Saver Meet VideoDuck, your friendly video compressor that keeps your iPhone fast, light, and free – no subscriptions, no ads, no internet needed. Shrink clips. Free up space. Share faster. VideoDuck compresses videos right on your iPhone using Apple Silicon's hardware encoder. Everything stays private – no uploads, no waiting, no data used. Free, forever • Compress any video with one tap – keep the moment, lose the megabytes • See exactly how much space you freed, every time • 100% on-device – works offline, private by design • Share faster – smaller files fly through AirDrop, messages, and mail • Your originals are always safe – you choose what to keep VideoDuck Pro – one-time unlock, never a subscription • High & Low quality modes – you pick the balance between quality and size • Batch compression – shrink your whole camera roll at once, resumes if interrupted • Advanced controls – resolution cap, frame rate, format Free to use. One payment to unlock everything. Nothing to cancel – ever. Your pocket supercomputer Compression runs entirely on your iPhone – no servers, no cloud, no queue. It's not just fast, it's private by design. Quack. Compress. Done. Free your phone from heavy videos in one tap – your iPhone deserves to breathe again. Download VideoDuck and make space for what matters.

About

PDF Diet Mobile

Read full description

PDF Diet is a fast, privacy-first PDF utility for iPhone and iPad. Compress large, image-heavy documents, clean up pages, and optimize files for sharing—all directly on your device. Why PDF Diet * Fully on-device: no uploads, no cloud, your files stay private * Instant results: quick compression and edits without waiting * Simple UI: focused tools that do the job fast Core Features * Compress PDFs – Reduce file size for email, messengers, and storage * Remove Pages – Delete unwanted pages before sharing * Optimize Files – Clean and streamline documents for better performance * Share Anywhere – Export to Mail, Messages, AirDrop, or any app Use Cases * Send large reports without hitting attachment limits * Save storage on your device * Clean up documents before sending to clients or teammates Built for speed and simplicity, PDF Diet helps you handle PDFs on the go with zero friction.

Screenshots

VideoDuck4 screens
PDF Diet Mobile4 screens

Verdict

The call

The clearest difference is price: VideoDuck at Free against PDF Diet Mobile's $1.99. VideoDuck also leads on update cadence (daily vs weekly). PDF Diet Mobile's advantage is in-app purchases (none vs 1). On ads, device support and iOS requirement there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

VideoDuck is free to download; PDF Diet Mobile costs $1.99 up front. VideoDuck sells 1 one-off in-app purchase. PDF Diet Mobile asks for nothing beyond the download.

UpkeepUpdate frequency

VideoDuck ships an update daily, PDF Diet Mobile weekly. The most recent releases landed on October 30, 2026 and November 1, 2026 respectively.

Scorecard3 real differences · 7 level
VideoDuck versus PDF Diet Mobile: the parameters behind the verdict, then further details
ParameterVideoDuckPDF Diet Mobile
PriceFree — better$1.99
Rating4.5 (2 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings2 — better—
Update frequencyDaily — betterWeekly
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree—
DevicesiPhoneiPhone, iPad — better
Requires iOS18.017.1 — better
Further details — not scored
Size2 MB7 MB
Age rating4+4+
DeveloperDavyd HorhiashviliArtem Svitelskyi

In-app purchases

1 purchases

VideoDuck

One-time1
  • VideoDuck Pro Lifetime$7.99
None

PDF Diet Mobile

No in-app purchases

Questions

Is VideoDuck free?
VideoDuck is free to download, with in-app purchases available.
Is PDF Diet Mobile free?
PDF Diet Mobile costs $1.99, with no in-app purchases.
Do VideoDuck or PDF Diet Mobile have ads?
Neither VideoDuck nor PDF Diet Mobile shows ads.
Which is updated more often, VideoDuck or PDF Diet Mobile?
VideoDuck ships an update daily, and PDF Diet Mobile weekly. Most recently, VideoDuck was updated on October 30, 2026 and PDF Diet Mobile on November 1, 2026.

Other comparisons